<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="7">
          <!-- 搜索框 -->
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialgvisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区 -->
      <el-table :data="UserList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <!-- 作用域插槽 -->
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="usersChange(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" widthg="180px">
          <!-- eslint-disable-next-line -->
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <el-tooltip
              class="item"
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <!-- 分配角色按钮 -->
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="fenuesr(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialgvisible"
      width="50%"
      @close="addDialgClose"
    >
      <!-- 内容主体区 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormref"
        label-width="70px"
        class="demo-ruleForm"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password" type="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialgvisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialgClose"
    >
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormref"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialgvisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色的对话框 -->
    <el-dialog title="分配角色" :visible.sync="fenDialgvisible" width="50%" @close="fenClose">
      <!-- 内容主体区 -->
      <p>姓名：{{ fenlist.username }}</p>
      <p>旧角色：{{ fenlist.role_name }}</p>
      <p>
        新角色：
        <el-select v-model="selectedRoleId" placeholder="请选择">
          <el-option
            v-for="item in fenpei"
            :key="item.id"
            :label="item.roleName"
            :value="item.id"
          >
          </el-option>
        </el-select>
      </p>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="fenDialgvisible = false">取 消</el-button>
        <el-button type="primary" @click="fenUser">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }

    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达是
      const regMobile = /^(13[0-9]|14[5,7]|15[0-3,5-9]|17[0,3,5-8]|18[0-9]|166|198|199|147)\d{8}$/
      if (regMobile.test(value)) {
        // 合法的手机号
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 获取用户列表的参数
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        pagesize: 2
      },
      UserList: [],
      total: 0,
      // 控制添加用户对话框的显示和隐藏
      addDialgvisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur'
          }, {
            min: 3,
            max: 10,
            message: '长度在 3 到 10 个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            trigger: 'blur'
          }, {
            min: 6,
            max: 16,
            message: '长度在 6 到 16 个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur'
          },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号',
            trigger: 'blur'
          },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户对象
      editForm: {},
      // 修改表单的验证规则
      editFormRules: {
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur'
          },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号',
            trigger: 'blur'
          },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      // 显示和隐藏分配角色的对话框
      fenDialgvisible: false,
      // 分配角色的用户信息
      fenlist: {},
      // 分配角色的列表
      fenpei: [],
      // 你选中角色的id值
      selectedRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return this.$message.console.error('获取用户列表失败！')
      }
      this.UserList = res.data.users
      this.total = res.data.total
      console.log(res)
    },
    // 监听 pagesize 改变的事件
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch 的状态
    async usersChange (userinfo) {
      console.log(userinfo)
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },
    // 监听添加对话框的关闭事件 this.$refs[fromName]resetFields () 重置表单
    addDialgClose () {
      this.$refs.addFormref.resetFields()
    },
    addUser () {
      // validate 校验器  返回布尔值
      this.$refs.addFormref.validate(async valid => {
        if (!valid) return
        // 可以发起添加用户的请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败')
        }

        this.$message.success('添加用户成功！')
        // 隐藏添加用户的对话框
        this.addDialgvisible = false
        // 重新发起用户列表请求
        this.getUserList()
      })
    },
    // 展示编辑用户的对话框
    async showEditDialog (id) {
      console.log(id)
      // 发送请求得到id的数据
      const { data: res } = await this.$http.get('users/' + id)

      if (res.meta.status !== 200) {
        return this.$message.error('获取用户数据失败')
      }

      this.$message.success('获取用户数据成功')
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听修改对话框的关闭事件 this.$refs[fromName]resetFields () 重置表单
    editDialgClose () {
      this.$refs.editFormref.resetFields()
    },
    editUser () {
      // validate 校验器  返回布尔值
      this.$refs.editFormref.validate(async valid => {
        if (!valid) return
        // 可以发起修改用户的请求
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        console.log(res.data)
        if (res.meta.status !== 200) {
          return this.$message.error('修改用户失败')
        }

        // 隐藏添加用户的对话框
        this.editDialogVisible = false
        // 重新发起用户列表请求
        this.getUserList()
        // 更新用户信息
        this.$message.success('修改用户成功！')
      })
    },
    // 根据id删除数据
    async removeUserById (id) {
      // 弹框询问是否删除数据
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // 如果用户确认删除, 择返回字符串confirm
      // 如果用户取消删除， 则返回字符串 cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      // console.log('确认删除')
      // 发送删除请求
      const { data: res } = await this.$http.delete('users/' + id)
      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败！')
      }
      this.$message.success('删除用户成功')
      // 更新列表
      this.getUserList()
    },
    // 对话框的展示
    async fenuesr (user) {
      this.fenlist = user
      // 在展示对话框是获取角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }

      this.fenpei = res.data
      this.fenDialgvisible = true
    },
    // 点击按钮，分配角色
    async fenUser () {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择分配的角色！')
      }
      const { data: res } = await this.$http.put(`users/${this.fenlist.id}/role`, {
        rid: this.selectedRoleId
      })

      if (res.meta.status !== 200) {
        return this.$message.error('分配角色更新失败')
      }
      this.getUserList()
      this.fenDialgvisible = false
    },
    // 分配角色对话框的关闭事件
    fenClose () {
      this.selectedRoleId = ''
      this.fenlist = ''
    }
  }
}
</script>

<style lang="less" scoped>
</style>
